Home / 278,678.45-417,910.70-118,652.93

Finding the Fourth Proportional to 278,678.45, 417,910.70 and 118,652.93

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Solution

The fourth proportional to 278,678.45, 417,910.70 and 118,652.93 is: 177,933.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,678.45 : 417,910.70 = 118,652.93 : x
  2. Step 2: Convert to fraction form
    278,678.45/417,910.70 = 118,652.93/x
  3. Step 3: Cross multiply
    278,678.45x = 417,910.70 × 118,652.93
  4. Step 4: Simplify right side
    278,678.45x = 49,586,328,807.60
  5. Step 5: Solve for x
    x = 49,586,328,807.60/278,678.45
  6. Step 6: Final answer
    x = 177,933.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.